Jupiter GRS transit tables give different times

[Werisit]

Hi Folks,

I'm looking forward to observing Jupiter and have been looking at the GRS transit times.

Trouble is, the 2 sites give different times. Example below.

Sky and Telescope.

November

1: 1:14, 11:09, 21:05;

2: 7:01, 16:56;

3: 2:52, 12:48, 22:44;

Project Jupiter.

1 Nov 10:34

1 Nov 20:29

2 Nov 6:25

2 Nov 16:21

3 Nov 2:16

3 Nov 12:12

3 Nov 22:08

Has anyone got any idea why they're different (both UT) or which is right?

[Guest Tweedledum]

These are the times I have :---  all UT

 

 

1 Nov 0:38
1 Nov 10:34
1 Nov 20:29
2 Nov 6:25
2 Nov 16:21
3 Nov 2:16
3 Nov 12:12
3 Nov 22:08
4 Nov 8:03
4 Nov 17:59
5 Nov 3:55
5 Nov 13:51
5 Nov 23:46
6 Nov 9:42
6 Nov 19:38
7 Nov 5:33
7 Nov 15:29
8 Nov 1:25
8 Nov 11:20
8 Nov 21:16
9 Nov 7:12
9 Nov 17:07
10 Nov 3:03
10 Nov 12:59
10 Nov 22:54
11 Nov 8:50
11 Nov 18:46
12 Nov 4:42
12 Nov 14:37
13 Nov 0:33
13 Nov 10:29
13 Nov 20:24
14 Nov 6:20
14 Nov 16:16
15 Nov 2:11
15 Nov 12:07
15 Nov 22:03
16 Nov 7:58
16 Nov 17:54
17 Nov 3:50
17 Nov 13:45
17 Nov 23:41
18 Nov 9:37
18 Nov 19:32
19 Nov 5:28
19 Nov 15:24
20 Nov 1:19
20 Nov 11:15
20 Nov 21:11
21 Nov 7:06
21 Nov 17:02
22 Nov 2:58
22 Nov 12:53
22 Nov 22:49
23 Nov 8:45
23 Nov 18:40
24 Nov 4:36
24 Nov 14:32
25 Nov 0:27
25 Nov 10:23
25 Nov 20:19
26 Nov 6:14
26 Nov 16:10
27 Nov 2:06
27 Nov 12:01
27 Nov 21:57
28 Nov 7:52
28 Nov 17:48
29 Nov 3:44
29 Nov 13:39
29 Nov 23:35
30 Nov 9:31
30 Nov 19:26

[Werisit]

Thanks Absterrio. They seem to agree with the Project Pluto (sorry, it should read "Project Pluto" in my original post) list.

Have you put any of these times to the test with an observation. I guess that's going to be the acid test.

[Guest Tweedledum]

Hi Alan,

 

I'll run some through stellarium, its pretty accurate now.

 

Cheers

Damian

[Werisit]

Hi folks. Just to give an update. I now use "Cartes Du Ciel" to keep track of Jupiter's goings-on.

Have a look at "stellarium updating jupiter" on this forum.